Thanks Abb. It's good to know I'm not alone. But I also know that I've had it "ok" compared to some situations.

My DH wants to tell the DD what's happening, as I cover for my ex alot with her. DH thinks she's old enough to make the decisions. But I don't think discussing financial implications with her should be her concern. But I want to somehow let her know, that the ex had the choice to help out with the costs but he chose to pay his girlfriends medical bill instead.

What wouldd you do? Would you tell the DD the situation.. or just try sort it out with ex? We are currently going through mediation anyway as when he started to change his mind on things, I decided that if I'm paying for things, he has no choice in things. EG, what schools, what activities she does etc. So this will all be going through court orders etc in coming months.